ii. In a small bowl, stir together 1 box of the
strawberry Jello, ½ an envelope of the Knox gelatin and 1 cup of the boiling
water, ensuring everything has dissolved. Pour into the prepared pan and place
in the refrigerator to set, about 15 minutes.

iii.Meanwhile, in a
medium bowl, stir together the sweetened condensed milk and 1 cup boiling
water. In a separate small bowl, sprinkle 2 envelopes of the unflavored gelatin
over ½ cup cold water. Allow to sit for 5 minutes. Add ½ cup boiling water to
the unflavored gelatin mixture and stir to dissolve. Pour into the sweetened
condensed milk mixture and stir to combine.

iv.Once the red layer is
set, pour 1 cup of the milk mixture over the red layer. Place in the
refrigerator for at least 15 minutes.

v.Repeat the layers,
alternating the red and blue between the white layers, with blue being your
last layer. Ensure that the colored Jello mixtures cool to room temperature
before pouring over the previous set layer.

vi.Once all of the
layers have been poured, refrigerate for at least 4 hours. When ready to serve,
run a thin knife around the edges of the pan and turn the Jello out onto a
cutting board. Cut into squares and serve, refrigerating any leftovers.